On this Grace St project Im about to start Im going to be restoring the original windows. In fact- its required by the Historical District. But in order to make the home as tight as possible and eliminate energy loss- Im considering adding interior storm windows.
Interior storm windows will help to maintain the exterior integrity of the historical structure while adding considerable R-Value to the windows.
I've never actually seen interior storm windows in use and Im wondering if any of you have. I'd love to hear your thoughts on both the aesthetics of the windows as well as the performance.